.clearfix:after {
	content: ".";
	display: block;
	height: 0;
	clear: both;
	visibility: hidden;
}

body{
	margin:auto;
	background-color:#EEE;
	font-family:"Microsoft YaHei";
}
div#wrap{
	width:1000px;
	margin:auto;
}
div#top{
	width:1000px;
	height:50px;
	text-align:center;
	border-top:2px solid #489BF0;
	border-bottom:2px solid #FFF;
}
div#center{
	width:1000px;
	height:600px;
	margin-top:0px;
	overflow:hidden;
	background-color:#E0F5FD;
	background-image:url("../images/login_bg.png");
	background-repeat:repeat-x;
}

div#bottom{
	width:1000px;
	height:50px;
	border-top:2px solid #489BF0;
	
}

div#login_form_wrap{
	width:258px;
	margin:auto;
	margin-top:150px;
	border:1px solid #CCC;
	
}
div#login_form{
	width:250px;
	height:180px;
	border:4px solid #489BF0;
	background-color:#FFF;
}
div#login_title{
	width:250px;
	height:35px;
	line-height:35px;
	font-size:20px;
	text-align:center;
	margin-bottom:10px;
	background-color:#489BF0;
}
div#login_tip{
	width:220px;
	height:20px;
	text-align:right;
	font-size:14px;
	color:red;
}
div#username{
	margin-left:5px;
	width:220px;
	height:30px;
	font-size:15px;
	line-height:30px;
	text-align:right;
	margin-bottom:5px;
}
div#password{
	margin-left:5px;
	font-size:15px;
	width:220px;
	height:30px;
	line-height:30px;
	text-align:right;
	margin-bottom:5px;
}

div#login_button:hover{
	margin-left:170px;
	width:50px;
	height:25px;
	line-height:25px;
	text-align:center;
	border:1px solid white;
	color:#FFF;
	background-color:#489BF0;
}
div#login_button{
	margin-left:170px;
	width:50px;
	height:25px;
	line-height:25px;
	text-align:center;
	color:#CCC;
	background-color:#489BF0;
}


#login_form input{
	width:155px;
}